1 /* GTK - The GIMP Toolkit
2 * Copyright (C) 1998, 2001 Tim Janik
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library. If not, see <http://www.gnu.org/licenses/>.
20 #include "gtkaccelmapprivate.h"
22 #include "gtkmarshalers.h"
23 #include "gtkwindowprivate.h"
26 #include <glib/gstdio.h>
41 * @Short_description: Loadable keyboard accelerator specifications
42 * @Title: Accelerator Maps
43 * @See_also: #GtkAccelGroup, #GtkAccelKey, #GtkUIManager, gtk_widget_set_accel_path(), gtk_menu_item_set_accel_path(), #GtkSettings:gtk-can-change-accels
45 * Accelerator maps are used to define runtime configurable accelerators.
46 * Functions for manipulating them are are usually used by higher level
47 * convenience mechanisms like #GtkUIManager and are thus considered
48 * "low-level". You'll want to use them if you're manually creating menus that
49 * should have user-configurable accelerators.
51 * Accelerator is uniquely defined by:
54 * <listitem><para>accelerator path</para></listitem>
55 * <listitem><para>accelerator key</para></listitem>
56 * <listitem><para>accelerator modifiers</para></listitem>
59 * The accelerator path must consist of
60 * "<WINDOWTYPE>/Category1/Category2/.../Action", where WINDOWTYPE
61 * should be a unique application-specific identifier that corresponds to the
62 * kind of window the accelerator is being used in, e.g. "Gimp-Image",
63 * "Abiword-Document" or "Gnumeric-Settings".
64 * The "Category1/.../Action" portion is most appropriately chosen by the action
65 * the accelerator triggers, i.e. for accelerators on menu items, choose the
66 * item's menu path, e.g. "File/Save As", "Image/View/Zoom" or
67 * "Edit/Select All". So a full valid accelerator path may look like:
68 * "<Gimp-Toolbox>/File/Dialogs/Tool Options...".
70 * All accelerators are stored inside one global #GtkAccelMap that can be
71 * obtained using gtk_accel_map_get(). See <link
72 * linkend="monitoring-changes">Monitoring changes</link> for additional
75 * <refsect2 id="manipulating-accelerators">
76 * <title>Manipulating accelerators</title>
78 * New accelerators can be added using gtk_accel_map_add_entry(). To search for
79 * specific accelerator, use gtk_accel_map_lookup_entry(). Modifications of
80 * existing accelerators should be done using gtk_accel_map_change_entry().
82 * In order to avoid having some accelerators changed, they can be locked using
83 * gtk_accel_map_lock_path(). Unlocking is done using
84 * gtk_accel_map_unlock_path().
87 * <refsect2 id="saving-and-loading">
88 * <title>Saving and loading accelerator maps</title>
90 * Accelerator maps can be saved to and loaded from some external resource. For
91 * simple saving and loading from file, gtk_accel_map_save() and
92 * gtk_accel_map_load() are provided. Saving and loading can also be done by
93 * providing file descriptor to gtk_accel_map_save_fd() and
94 * gtk_accel_map_load_fd().
97 * <refsect2 id="monitoring-changes">
98 * <title>Monitoring changes</title>
100 * #GtkAccelMap object is only useful for monitoring changes of accelerators. By
101 * connecting to #GtkAccelMap::changed signal, one can monitor changes of all
102 * accelerators. It is also possible to monitor only single accelerator path by
103 * using it as a detail of the #GtkAccelMap::changed signal.
109 /* --- structures --- */
112 GObject parent_instance;
115 struct _GtkAccelMapClass
117 GObjectClass parent_class;
121 const gchar *accel_path;
125 guint std_accel_mods;
127 guint lock_count : 15;
131 /* --- signals --- */
137 /* --- variables --- */
139 static GHashTable *accel_entry_ht = NULL; /* accel_path -> AccelEntry */
140 static GSList *accel_filters = NULL;
141 static gulong accel_map_signals[LAST_SIGNAL] = { 0, };
142 static GtkAccelMap *accel_map;
144 /* --- prototypes --- */
145 static void do_accel_map_changed (AccelEntry *entry);
147 /* --- functions --- */
149 accel_entry_hash (gconstpointer key)
151 const AccelEntry *entry = key;
153 return g_str_hash (entry->accel_path);
157 accel_entry_equal (gconstpointer key1,
160 const AccelEntry *entry1 = key1;
161 const AccelEntry *entry2 = key2;
163 return g_str_equal (entry1->accel_path, entry2->accel_path);
166 static inline AccelEntry*
167 accel_path_lookup (const gchar *accel_path)
171 ekey.accel_path = accel_path;
173 /* safety NULL check for return_if_fail()s */
174 return accel_path ? g_hash_table_lookup (accel_entry_ht, &ekey) : NULL;
178 _gtk_accel_map_init (void)
180 if (accel_entry_ht == NULL)
181 accel_entry_ht = g_hash_table_new (accel_entry_hash, accel_entry_equal);
185 _gtk_accel_path_is_valid (const gchar *accel_path)
189 if (!accel_path || accel_path[0] != '<' ||
190 accel_path[1] == '<' || accel_path[1] == '>' || !accel_path[1])
192 p = strchr (accel_path, '>');
193 if (!p || (p[1] != 0 && p[1] != '/'))
199 * gtk_accel_map_add_entry:
200 * @accel_path: valid accelerator path
201 * @accel_key: the accelerator key
202 * @accel_mods: the accelerator modifiers
204 * Registers a new accelerator with the global accelerator map.
205 * This function should only be called once per @accel_path
206 * with the canonical @accel_key and @accel_mods for this path.
207 * To change the accelerator during runtime programatically, use
208 * gtk_accel_map_change_entry().
210 * Note that @accel_path string will be stored in a #GQuark. Therefore, if you
211 * pass a static string, you can save some memory by interning it first with
212 * g_intern_static_string().
215 gtk_accel_map_add_entry (const gchar *accel_path,
217 GdkModifierType accel_mods)
221 g_return_if_fail (_gtk_accel_path_is_valid (accel_path));
226 accel_mods &= gtk_accelerator_get_default_mod_mask ();
228 entry = accel_path_lookup (accel_path);
231 if (!entry->std_accel_key && !entry->std_accel_mods &&
232 (accel_key || accel_mods))
234 entry->std_accel_key = accel_key;
235 entry->std_accel_mods = accel_mods;
237 gtk_accel_map_change_entry (entry->accel_path, accel_key, accel_mods, TRUE);
242 entry = g_slice_new0 (AccelEntry);
243 entry->accel_path = g_intern_string (accel_path);
244 entry->std_accel_key = accel_key;
245 entry->std_accel_mods = accel_mods;
246 entry->accel_key = accel_key;
247 entry->accel_mods = accel_mods;
248 entry->changed = FALSE;
249 entry->lock_count = 0;
250 g_hash_table_insert (accel_entry_ht, entry, entry);
252 do_accel_map_changed (entry);
257 * gtk_accel_map_lookup_entry:
258 * @accel_path: a valid accelerator path
259 * @key: (allow-none) (out): the accelerator key to be filled in (optional)
261 * Looks up the accelerator entry for @accel_path and fills in @key.
263 * Returns: %TRUE if @accel_path is known, %FALSE otherwise
266 gtk_accel_map_lookup_entry (const gchar *accel_path,
271 g_return_val_if_fail (_gtk_accel_path_is_valid (accel_path), FALSE);
273 entry = accel_path_lookup (accel_path);
276 key->accel_key = entry->accel_key;
277 key->accel_mods = entry->accel_mods;
278 key->accel_flags = 0;
281 return entry ? TRUE : FALSE;
285 hash2slist_foreach (gpointer key,
289 GSList **slist_p = user_data;
291 *slist_p = g_slist_prepend (*slist_p, value);
295 g_hash_table_slist_values (GHashTable *hash_table)
297 GSList *slist = NULL;
299 g_return_val_if_fail (hash_table != NULL, NULL);
301 g_hash_table_foreach (hash_table, hash2slist_foreach, &slist);
306 /* if simulate==TRUE, return whether accel_path can be changed to
307 * accel_key && accel_mods. otherwise, return whether accel_path
308 * was actually changed.
311 internal_change_entry (const gchar *accel_path,
313 GdkModifierType accel_mods,
317 GSList *node, *slist, *win_list, *group_list, *replace_list = NULL;
318 GHashTable *group_hm, *window_hm;
319 gboolean change_accel, removable, can_change = TRUE, seen_accel = FALSE;
321 AccelEntry *entry = accel_path_lookup (accel_path);
323 /* not much todo if there's no entry yet */
328 gtk_accel_map_add_entry (accel_path, 0, 0);
329 entry = accel_path_lookup (accel_path);
330 entry->accel_key = accel_key;
331 entry->accel_mods = accel_mods;
332 entry->changed = TRUE;
334 do_accel_map_changed (entry);
339 /* if there's nothing to change, not much todo either */
340 if (entry->accel_key == accel_key && entry->accel_mods == accel_mods)
343 entry->changed = TRUE;
344 return simulate ? TRUE : FALSE;
347 /* The no-change case has already been handled, so
348 * simulate doesn't make a difference here.
350 if (entry->lock_count > 0)
353 /* nobody's interested, easy going */
358 entry->accel_key = accel_key;
359 entry->accel_mods = accel_mods;
360 entry->changed = TRUE;
362 do_accel_map_changed (entry);
367 /* 1) fetch all accel groups affected by this entry */
368 entry_quark = g_quark_try_string (entry->accel_path);
369 group_hm = g_hash_table_new (NULL, NULL);
370 window_hm = g_hash_table_new (NULL, NULL);
371 for (slist = entry->groups; slist; slist = slist->next)
372 g_hash_table_insert (group_hm, slist->data, slist->data);
374 /* 2) collect acceleratables affected */
375 group_list = g_hash_table_slist_values (group_hm);
376 for (slist = group_list; slist; slist = slist->next)
378 GtkAccelGroup *group = slist->data;
380 for (node = _gtk_accel_group_get_accelerables (group); node; node = node->next)
381 g_hash_table_insert (window_hm, node->data, node->data);
383 g_slist_free (group_list);
385 /* 3) include all accel groups used by acceleratables */
386 win_list = g_hash_table_slist_values (window_hm);
387 g_hash_table_destroy (window_hm);
388 for (slist = win_list; slist; slist = slist->next)
389 for (node = gtk_accel_groups_from_object (slist->data); node; node = node->next)
390 g_hash_table_insert (group_hm, node->data, node->data);
391 group_list = g_hash_table_slist_values (group_hm);
392 g_hash_table_destroy (group_hm);
394 /* 4) walk the acceleratables and figure whether they occupy accel_key&accel_mods */
396 for (slist = win_list; slist; slist = slist->next)
397 if (GTK_IS_WINDOW (slist->data)) /* bad kludge in lack of a GtkAcceleratable */
398 if (_gtk_window_query_nonaccels (slist->data, accel_key, accel_mods))
403 removable = !seen_accel;
405 /* 5) walk all accel groups and search for locks */
407 for (slist = group_list; slist; slist = slist->next)
409 GtkAccelGroup *group = slist->data;
410 GtkAccelGroupEntry *ag_entry;
414 ag_entry = entry->accel_key ? gtk_accel_group_query (group, entry->accel_key, entry->accel_mods, &n) : NULL;
415 for (i = 0; i < n; i++)
416 if (ag_entry[i].accel_path_quark == entry_quark)
418 can_change = !(ag_entry[i].key.accel_flags & GTK_ACCEL_LOCKED);
420 goto break_loop_step5;
424 ag_entry = accel_key ? gtk_accel_group_query (group, accel_key, accel_mods, &n) : NULL;
425 for (i = 0; i < n; i++)
428 removable = !gtk_accel_group_get_is_locked (group) && !(ag_entry[i].key.accel_flags & GTK_ACCEL_LOCKED);
430 goto break_loop_step5;
431 if (ag_entry[i].accel_path_quark)
432 replace_list = g_slist_prepend (replace_list, GUINT_TO_POINTER (ag_entry[i].accel_path_quark));
437 /* 6) check whether we can remove existing accelerators */
438 if (removable && can_change)
439 for (slist = replace_list; slist; slist = slist->next)
440 if (!internal_change_entry (g_quark_to_string (GPOINTER_TO_UINT (slist->data)), 0, 0, FALSE, TRUE))
446 /* 7) check conditions and proceed if possible */
447 change_accel = can_change && (!seen_accel || (removable && replace));
449 if (change_accel && !simulate)
451 /* ref accel groups */
452 for (slist = group_list; slist; slist = slist->next)
453 g_object_ref (slist->data);
455 /* 8) remove existing accelerators */
456 for (slist = replace_list; slist; slist = slist->next)
457 internal_change_entry (g_quark_to_string (GPOINTER_TO_UINT (slist->data)), 0, 0, FALSE, FALSE);
459 /* 9) install new accelerator */
460 entry->accel_key = accel_key;
461 entry->accel_mods = accel_mods;
462 entry->changed = TRUE;
464 for (slist = group_list; slist; slist = slist->next)
465 _gtk_accel_group_reconnect (slist->data, g_quark_from_string (entry->accel_path));
467 /* unref accel groups */
468 for (slist = group_list; slist; slist = slist->next)
469 g_object_unref (slist->data);
471 do_accel_map_changed (entry);
473 g_slist_free (replace_list);
474 g_slist_free (group_list);
475 g_slist_free (win_list);
481 * gtk_accel_map_change_entry:
482 * @accel_path: a valid accelerator path
483 * @accel_key: the new accelerator key
484 * @accel_mods: the new accelerator modifiers
485 * @replace: %TRUE if other accelerators may be deleted upon conflicts
487 * Changes the @accel_key and @accel_mods currently associated with @accel_path.
488 * Due to conflicts with other accelerators, a change may not always be possible,
489 * @replace indicates whether other accelerators may be deleted to resolve such
490 * conflicts. A change will only occur if all conflicts could be resolved (which
491 * might not be the case if conflicting accelerators are locked). Successful
492 * changes are indicated by a %TRUE return value.
494 * Note that @accel_path string will be stored in a #GQuark. Therefore, if you
495 * pass a static string, you can save some memory by interning it first with
496 * g_intern_static_string().
498 * Returns: %TRUE if the accelerator could be changed, %FALSE otherwise
501 gtk_accel_map_change_entry (const gchar *accel_path,
503 GdkModifierType accel_mods,
506 g_return_val_if_fail (_gtk_accel_path_is_valid (accel_path), FALSE);
508 return internal_change_entry (accel_path, accel_key, accel_key ? accel_mods : 0, replace, FALSE);
512 accel_map_parse_accel_path (GScanner *scanner)
515 GdkModifierType accel_mods = 0;
518 /* parse accel path */
519 g_scanner_get_next_token (scanner);
520 if (scanner->token != G_TOKEN_STRING)
521 return G_TOKEN_STRING;
523 /* test if the next token is an accelerator */
524 g_scanner_peek_next_token (scanner);
525 if (scanner->next_token != G_TOKEN_STRING)
527 /* if not so, eat that token and error out */
528 g_scanner_get_next_token (scanner);
529 return G_TOKEN_STRING;
532 /* get the full accelerator specification */
533 path = g_strdup (scanner->value.v_string);
534 g_scanner_get_next_token (scanner);
535 accel = g_strdup (scanner->value.v_string);
537 /* ensure the entry is present */
538 gtk_accel_map_add_entry (path, 0, 0);
540 /* and propagate it */
541 gtk_accelerator_parse (accel, &accel_key, &accel_mods);
542 gtk_accel_map_change_entry (path, accel_key, accel_mods, TRUE);
547 /* check correct statement end */
548 g_scanner_get_next_token (scanner);
549 if (scanner->token != ')')
556 accel_map_parse_statement (GScanner *scanner)
558 guint expected_token;
560 g_scanner_get_next_token (scanner);
562 if (scanner->token == G_TOKEN_SYMBOL)
564 guint (*parser_func) (GScanner*);
566 parser_func = (guint (*) (GScanner *))scanner->value.v_symbol;
568 expected_token = parser_func (scanner);
571 expected_token = G_TOKEN_SYMBOL;
573 /* skip rest of statement on errrors
575 if (expected_token != G_TOKEN_NONE)
577 register guint level;
580 if (scanner->token == ')')
582 if (scanner->token == '(')
585 while (!g_scanner_eof (scanner) && level > 0)
587 g_scanner_get_next_token (scanner);
589 if (scanner->token == '(')
591 else if (scanner->token == ')')
598 * gtk_accel_map_load_scanner:
599 * @scanner: a #GScanner which has already been provided with an input file
601 * #GScanner variant of gtk_accel_map_load().
604 gtk_accel_map_load_scanner (GScanner *scanner)
606 gboolean skip_comment_single;
607 gboolean symbol_2_token;
608 gchar *cpair_comment_single;
609 gpointer saved_symbol;
611 g_return_if_fail (scanner != NULL);
613 /* configure scanner */
614 skip_comment_single = scanner->config->skip_comment_single;
615 scanner->config->skip_comment_single = TRUE;
616 cpair_comment_single = scanner->config->cpair_comment_single;
617 scanner->config->cpair_comment_single = ";\n";
618 symbol_2_token = scanner->config->symbol_2_token;
619 scanner->config->symbol_2_token = FALSE;
620 saved_symbol = g_scanner_lookup_symbol (scanner, "gtk_accel_path");
621 g_scanner_scope_add_symbol (scanner, 0, "gtk_accel_path",
622 accel_map_parse_accel_path);
624 /* outer parsing loop
626 g_scanner_peek_next_token (scanner);
627 while (scanner->next_token == '(')
629 g_scanner_get_next_token (scanner);
631 accel_map_parse_statement (scanner);
633 g_scanner_peek_next_token (scanner);
637 scanner->config->skip_comment_single = skip_comment_single;
638 scanner->config->cpair_comment_single = cpair_comment_single;
639 scanner->config->symbol_2_token = symbol_2_token;
640 g_scanner_scope_remove_symbol (scanner, 0, "gtk_accel_path");
642 g_scanner_scope_add_symbol (scanner, 0, "gtk_accel_path", saved_symbol);
646 * gtk_accel_map_load_fd:
647 * @fd: a valid readable file descriptor
649 * Filedescriptor variant of gtk_accel_map_load().
651 * Note that the file descriptor will not be closed by this function.
654 gtk_accel_map_load_fd (gint fd)
658 g_return_if_fail (fd >= 0);
660 /* create and setup scanner */
661 scanner = g_scanner_new (NULL);
662 g_scanner_input_file (scanner, fd);
664 gtk_accel_map_load_scanner (scanner);
666 g_scanner_destroy (scanner);
670 * gtk_accel_map_load:
671 * @file_name: (type filename): a file containing accelerator specifications,
672 * in the GLib file name encoding
674 * Parses a file previously saved with gtk_accel_map_save() for
675 * accelerator specifications, and propagates them accordingly.
678 gtk_accel_map_load (const gchar *file_name)
682 g_return_if_fail (file_name != NULL);
684 if (!g_file_test (file_name, G_FILE_TEST_IS_REGULAR))
687 fd = g_open (file_name, O_RDONLY, 0);
691 gtk_accel_map_load_fd (fd);
703 gssize count = write (fd, buf, to_write);
720 accel_map_print (gpointer data,
721 const gchar *accel_path,
723 GdkModifierType accel_mods,
726 GString *gstring = g_string_new (changed ? NULL : "; ");
727 gint fd = GPOINTER_TO_INT (data);
730 g_string_append (gstring, "(gtk_accel_path \"");
732 tmp = g_strescape (accel_path, NULL);
733 g_string_append (gstring, tmp);
736 g_string_append (gstring, "\" \"");
738 name = gtk_accelerator_name (accel_key, accel_mods);
739 tmp = g_strescape (name, NULL);
741 g_string_append (gstring, tmp);
744 g_string_append (gstring, "\")\n");
746 write_all (fd, gstring->str, gstring->len);
748 g_string_free (gstring, TRUE);
752 * gtk_accel_map_save_fd:
753 * @fd: a valid writable file descriptor
755 * Filedescriptor variant of gtk_accel_map_save().
757 * Note that the file descriptor will not be closed by this function.
760 gtk_accel_map_save_fd (gint fd)
764 g_return_if_fail (fd >= 0);
766 gstring = g_string_new ("; ");
767 if (g_get_prgname ())
768 g_string_append (gstring, g_get_prgname ());
769 g_string_append (gstring, " GtkAccelMap rc-file -*- scheme -*-\n");
770 g_string_append (gstring, "; this file is an automated accelerator map dump\n");
771 g_string_append (gstring, ";\n");
773 write_all (fd, gstring->str, gstring->len);
775 g_string_free (gstring, TRUE);
777 gtk_accel_map_foreach (GINT_TO_POINTER (fd), accel_map_print);
781 * gtk_accel_map_save:
782 * @file_name: (type filename): the name of the file to contain
783 * accelerator specifications, in the GLib file name encoding
785 * Saves current accelerator specifications (accelerator path, key
786 * and modifiers) to @file_name.
787 * The file is written in a format suitable to be read back in by
788 * gtk_accel_map_load().
791 gtk_accel_map_save (const gchar *file_name)
795 g_return_if_fail (file_name != NULL);
797 fd = g_open (file_name, O_CREAT | O_TRUNC | O_WRONLY, 0644);
801 gtk_accel_map_save_fd (fd);
807 * gtk_accel_map_foreach:
808 * @data: (allow-none): data to be passed into @foreach_func
809 * @foreach_func: (scope call): function to be executed for each accel
810 * map entry which is not filtered out
812 * Loops over the entries in the accelerator map whose accel path
813 * doesn't match any of the filters added with gtk_accel_map_add_filter(),
814 * and execute @foreach_func on each. The signature of @foreach_func is
815 * that of #GtkAccelMapForeach, the @changed parameter indicates whether
816 * this accelerator was changed during runtime (thus, would need
817 * saving during an accelerator map dump).
820 gtk_accel_map_foreach (gpointer data,
821 GtkAccelMapForeach foreach_func)
823 GSList *entries, *slist, *node;
825 g_return_if_fail (foreach_func != NULL);
827 entries = g_hash_table_slist_values (accel_entry_ht);
828 for (slist = entries; slist; slist = slist->next)
830 AccelEntry *entry = slist->data;
831 gboolean changed = entry->accel_key != entry->std_accel_key || entry->accel_mods != entry->std_accel_mods;
833 for (node = accel_filters; node; node = node->next)
834 if (g_pattern_match_string (node->data, entry->accel_path))
836 foreach_func (data, entry->accel_path, entry->accel_key, entry->accel_mods, changed);
840 g_slist_free (entries);
844 * gtk_accel_map_foreach_unfiltered:
845 * @data: data to be passed into @foreach_func
846 * @foreach_func: (scope call): function to be executed for each accel
849 * Loops over all entries in the accelerator map, and execute
850 * @foreach_func on each. The signature of @foreach_func is that of
851 * #GtkAccelMapForeach, the @changed parameter indicates whether
852 * this accelerator was changed during runtime (thus, would need
853 * saving during an accelerator map dump).
856 gtk_accel_map_foreach_unfiltered (gpointer data,
857 GtkAccelMapForeach foreach_func)
859 GSList *entries, *slist;
861 g_return_if_fail (foreach_func != NULL);
863 entries = g_hash_table_slist_values (accel_entry_ht);
864 for (slist = entries; slist; slist = slist->next)
866 AccelEntry *entry = slist->data;
867 gboolean changed = entry->accel_key != entry->std_accel_key || entry->accel_mods != entry->std_accel_mods;
869 foreach_func (data, entry->accel_path, entry->accel_key, entry->accel_mods, changed);
871 g_slist_free (entries);
875 * gtk_accel_map_add_filter:
876 * @filter_pattern: a pattern (see #GPatternSpec)
878 * Adds a filter to the global list of accel path filters.
880 * Accel map entries whose accel path matches one of the filters
881 * are skipped by gtk_accel_map_foreach().
883 * This function is intended for GTK+ modules that create their own
884 * menus, but don't want them to be saved into the applications accelerator
888 gtk_accel_map_add_filter (const gchar *filter_pattern)
893 g_return_if_fail (filter_pattern != NULL);
895 pspec = g_pattern_spec_new (filter_pattern);
896 for (slist = accel_filters; slist; slist = slist->next)
897 if (g_pattern_spec_equal (pspec, slist->data))
899 g_pattern_spec_free (pspec);
902 accel_filters = g_slist_prepend (accel_filters, pspec);
906 _gtk_accel_map_add_group (const gchar *accel_path,
907 GtkAccelGroup *accel_group)
911 g_return_if_fail (_gtk_accel_path_is_valid (accel_path));
912 g_return_if_fail (GTK_IS_ACCEL_GROUP (accel_group));
914 entry = accel_path_lookup (accel_path);
917 gtk_accel_map_add_entry (accel_path, 0, 0);
918 entry = accel_path_lookup (accel_path);
920 entry->groups = g_slist_prepend (entry->groups, accel_group);
924 _gtk_accel_map_remove_group (const gchar *accel_path,
925 GtkAccelGroup *accel_group)
929 entry = accel_path_lookup (accel_path);
930 g_return_if_fail (entry != NULL);
931 g_return_if_fail (g_slist_find (entry->groups, accel_group));
933 entry->groups = g_slist_remove (entry->groups, accel_group);
938 * gtk_accel_map_lock_path:
939 * @accel_path: a valid accelerator path
941 * Locks the given accelerator path. If the accelerator map doesn't yet contain
942 * an entry for @accel_path, a new one is created.
944 * Locking an accelerator path prevents its accelerator from being changed
945 * during runtime. A locked accelerator path can be unlocked by
946 * gtk_accel_map_unlock_path(). Refer to gtk_accel_map_change_entry()
947 * for information about runtime accelerator changes.
949 * If called more than once, @accel_path remains locked until
950 * gtk_accel_map_unlock_path() has been called an equivalent number
953 * Note that locking of individual accelerator paths is independent from
954 * locking the #GtkAccelGroup containing them. For runtime accelerator
955 * changes to be possible both the accelerator path and its #GtkAccelGroup
956 * have to be unlocked.
961 gtk_accel_map_lock_path (const gchar *accel_path)
965 g_return_if_fail (_gtk_accel_path_is_valid (accel_path));
967 entry = accel_path_lookup (accel_path);
971 gtk_accel_map_add_entry (accel_path, 0, 0);
972 entry = accel_path_lookup (accel_path);
975 entry->lock_count += 1;
979 * gtk_accel_map_unlock_path:
980 * @accel_path: a valid accelerator path
982 * Undoes the last call to gtk_accel_map_lock_path() on this @accel_path.
983 * Refer to gtk_accel_map_lock_path() for information about accelerator path locking.
988 gtk_accel_map_unlock_path (const gchar *accel_path)
992 g_return_if_fail (_gtk_accel_path_is_valid (accel_path));
994 entry = accel_path_lookup (accel_path);
996 g_return_if_fail (entry != NULL && entry->lock_count > 0);
998 entry->lock_count -= 1;
1001 G_DEFINE_TYPE (GtkAccelMap, gtk_accel_map, G_TYPE_OBJECT)
1004 gtk_accel_map_class_init (GtkAccelMapClass *accel_map_class)
1007 * GtkAccelMap::changed:
1008 * @object: the global accel map object
1009 * @accel_path: the path of the accelerator that changed
1010 * @accel_key: the key value for the new accelerator
1011 * @accel_mods: the modifier mask for the new accelerator
1013 * Notifies of a change in the global accelerator map.
1014 * The path is also used as the detail for the signal,
1015 * so it is possible to connect to
1016 * changed::<replaceable>accel_path</replaceable>.
1020 accel_map_signals[CHANGED] = g_signal_new (I_("changed"),
1021 G_TYPE_FROM_CLASS (accel_map_class),
1022 G_SIGNAL_DETAILED|G_SIGNAL_RUN_LAST,
1025 _gtk_marshal_VOID__STRING_UINT_FLAGS,
1027 G_TYPE_STRING, G_TYPE_UINT, GDK_TYPE_MODIFIER_TYPE);
1031 gtk_accel_map_init (GtkAccelMap *accel_map)
1036 * gtk_accel_map_get:
1038 * Gets the singleton global #GtkAccelMap object. This object
1039 * is useful only for notification of changes to the accelerator
1040 * map via the ::changed signal; it isn't a parameter to the
1041 * other accelerator map functions.
1043 * Return value: (transfer none): the global #GtkAccelMap object
1048 gtk_accel_map_get (void)
1051 accel_map = g_object_new (GTK_TYPE_ACCEL_MAP, NULL);
1057 do_accel_map_changed (AccelEntry *entry)
1060 g_signal_emit (accel_map,
1061 accel_map_signals[CHANGED],
1062 g_quark_from_string (entry->accel_path),
1069 _gtk_accel_path_for_action (const gchar *action_name,
1070 GVariant *parameter)
1074 s = g_string_new ("<GAction>/");
1075 g_string_append (s, action_name);
1078 g_string_append_c (s, '/');
1079 g_variant_print_string (parameter, s, FALSE);
1081 return g_string_free (s, FALSE);